Our homeschooled daughter asked to take it before what would have been her senior year. I did a little research and bought her
Cracking the GED, a test prep book, just so she would go into the test with an idea of the procedures. She aced the test. She said it was easy.
I liked the book, BTW, and recommend it.
My husband also got our son a book in which to prepare but my son, after taking the GED, told us he never even studied or read the book. Okay, so he got lucky, but you just never know what will be on those tests.